Thoroughbreds (2018)

Former friends reconnect when Amanda's mother sets up some tutoring sessions with Lily. Amanda's been an outcast since she ineptly mercy-killed her horse and Lily's a spoiled rich girl living at home after being expelled from boarding school for plagiarism. When Amanda picks up on Lily's hatred for her stepfather, they plan to get rid of him. That Amanda seems to possess no natural emotions is both novel and an asset for their purposes.

The story is streamlined to great effect. We don't immediately know the situation and it's a true pleasure to discover the backstory in what feels like a very natural way. The girls' conversations feel real rather than gratuitously expository. I enjoyed this a lot.

B+